Patents by Inventor Afia S. Karikari

Afia S. Karikari has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Ionic strength triggered disintegration of films and particulates
    Patent number: 10400114
    Abstract: A composition comprising an ethylene (meth)acrylic acid copolymer and an anti-fouling agent is provided. The composition selectively disintegrates in media of different ionic strengths. Also provided is a method of preventing fouling using the composition.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: September 3, 2019
    Assignee: Rohm and Haas Company
    Inventors: Scott Backer, Afia S. Karikari, Paul Mercando
  • Water dispersible films for packaging high water containing formulations
    Patent number: 10047329
    Abstract: A composition comprising an ethylene (mem)acrylic acid copolymer and a crosslinking agent is provided. The composition is able to form a film composition, which selectively disintegrates in media with high water content, depending on the ionic strength of the media.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: August 14, 2018
    Assignee: Rohm and Haas Chemicals LLC
    Inventors: Scott Backer, Afia S. Karikari, Paul Mercando
  • WATER DISPERSIBLE FILMS FOR PACKAGING HIGH WATER CONTAINING FORMULATIONS
    Publication number: 20160244701
    Abstract: A composition comprising an ethylene (mem)acrylic acid copolymer and a crosslinking agent is provided. The composition is able to form a film composition, which selectively disintegrates in media with high water content, depending on the ionic strength of the media.
    Type: Application
    Filed: September 25, 2014
    Publication date: August 25, 2016
    Inventors: Scott BACKER, Afia S. KARIKARI, Paul MERCANDO
  • IONIC STRENGTH TRIGGERED DISINTEGRATION OF FILMS AND PARTICULATES
    Publication number: 20160244619
    Abstract: A composition comprising an ethylene (meth)acrylic acid copolymer and an anti-fouling agent is provided. The composition selectively disintegrates in media of different ionic strengths. Also provided is a method of preventing fouling using the composition.
    Type: Application
    Filed: September 25, 2014
    Publication date: August 25, 2016
    Inventors: Scott BACKER, Afia S. KARIKARI, Paul MERCANDO
  • AQUEOUS COATING COMPOSITION
    Publication number: 20120041166
    Abstract: A method for preparing a polymer containing zinc ion, calcium ion or magnesium ion; polymerized residues of 0.5 to 7 wt % itaconic acid and 4 to 15 wt % (meth)acrylic acid. The polymer has a Tg from 50 to 110° C. The method includes forming a polymerization mixture having from 0.5 to 8 wt % of a di-(meth)acrylate salt of zinc, calcium or magnesium ion.
    Type: Application
    Filed: August 5, 2011
    Publication date: February 16, 2012
    Inventors: Afia S. Karikari, Theodore Tysak